| abstract |
【Task】 This invention provides the polyimide resin excellent in high transparency, heat resistance, and a low linear expansion coefficient. [Solution] Bicyclo [4.2.0] octane-3,4,7,8-tetracarboxylic dianhydride and aromatic diamine compound with respect to the tetracarboxylic dianhydride 100 in molar ratio, the diamine compound Use the polyimide resin obtained by imidation polymerization reaction in the range of 90-110. [Selection figure] None |